When I do modprobe cryptoloop I get:

modprobe: FATAL: Module cryptoloop not found in directory /lib/modules/4.9.0-8-amd64

the package cryptsetup is installed. I have this working on another Debian Stretch machine. There was no kernel recompilation involved on the other machine as suggested here (and neither do I want to go that way).

What have I forgotten to do?

closed as off-topic by Jeff Schaller, schily, GAD3R, Isaac, sourcejedi Sep 2 '18 at 20:15

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions describing a problem that can't be reproduced and seemingly went away on its own (or went away when a typo was fixed) are off-topic as they are unlikely to help future readers." – schily, GAD3R, Isaac
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